Press Release

ACGIH® Presents TLVs® and Adjustments due to Worker Conditions



Cincinnati, Ohio — November 25, 2008 — ACGIH® will present the second segment of a two-part webinar series, TLVs® and Adjustments due to Worker Conditions, on January 29, 2009 at the following times:

2:00 p.m. – 4:30 p.m. (Eastern Time)
1:00 p.m. – 3:30 p.m. (Central Time)
12:00 p.m. – 2:30 p.m. (Mountain Time)
11:00 a.m. – 1:30 p.m. (Pacific Time)

ACGIH® is presenting a two-part webinar series focused on the TLVs® for Chemical Substances and the proper application of the values during unusual conditions. Part one, presented on October 28, 2008, discussed adjustments due to workplace conditions and focused on both ambient workplace conditions and time and work shift adjustments (archival copies of this event are available). Part two, presented on January 29, 2009, will address worker conditions including age, gender, and health concerns. Though Part one and Part two are complementary in nature, they are designed to be stand alone learning modules; therefore, there are no prerequisites for either webinar.

The role of the environmental health and safety professional is to determine how exposures at the workplace affect the health of the employee. However, it is also important to consider how the health of the employee affects workplace exposure assessment. When there is significant variability in employee health conditions it can become a challenging undertaking to properly apply the TLVs®. This webinar will focus on adjustments to the TLVs® due to worker physical conditions and the biological variability of the workforce when accounting for factors such as:

  • Age and Gender
    • Reproductive health effects
      • Pregnancy
      • Nursing mothers
    • Aging workforce
    • Youth workforce
  • Non-occupational Exposures
    • Environmental concerns
      • Pollutants
      • Smoking
    • Moonlighting and recreational exposures
  • Health Related Concerns
    • Medication-dependent workers
    • Chronic health conditions
    • Sensitization
      • Allergies
      • Asthma
After participating in this webinar, attendees will be better able to understand:
  • The purpose of the TLVs® and the variables that should be considered when modification is needed due to an employee's physical condition.
  • The impact age may play when assessing an exposure.
  • The exposure accommodations to consider for reproductive issues.
  • How non-occupational exposures can interact with a workplace exposure.
  • Special considerations of medication-dependent employees.
  • How to work with the employee to ensure proper evaluation factors.
ACGIH® is pleased to offer webinar attendees an audio option. U.S. and Canadian attendees can connect to the audio portion of the webinar via the toll-free audio telephone link or listen to the audio portion through an audio stream directly through their computer. Other international participants can listen via the audio stream without incurring additional telephone charges.

John D. Elias, MPH, CIH, ROH, CRSP and Rachel Rubin, MD, MPH will present this webinar. David C. May, ScD, CIH, PE serves as Webinar Education Development Coordinator for this webinar.

John D. Elias, MPH, CIH, ROH, CRSP is a principal and founder of OHG Consulting. He has over 40 years of experience in the field of occupational hygiene and environmental studies. As head of occupational hygiene for the Province of Manitoba, he oversaw the drafting of legislation for workplace health regulations that adopted the concept of adjusting the TLVs® to accommodate atypical workers and workplaces. He has developed and delivered occupational hygiene courses for the University of Manitoba Departments of Labour, Medicine and Continuing Education. He has developed and delivered many professional development courses on adjusting TLVs®.

Rachel Rubin, MD, MPH is the Medical Director of MacNeal Hospital Occupational Health Services and the former Division Director of Occupational and Environmental Medicine at Stroger (Cook County) Hospital in Chicago, IL. She is an adjunct faculty member at the University of Illinois at Chicago School of Public Health. Dr. Rubin is a member of the ACGIH® Threshold Limit Values for Chemical Substances (TLV®-CS) Committee. She is board certified in both Occupational Medicine and Internal Medicine.

David C. May, ScD, CIH, PE is the principal of Concord Cymorth, LLC in Concord, New Hampshire, and is an adjunct faculty member at Keene State College. Dr. May is a member of the ACGIH® Threshold Limit Values for Chemical Substances (TLV®-CS) Committee and has previously served as a member of the ACGIH® Board of Directors. He is certified in the comprehensive practice of industrial hygiene by the American Board of Industrial Hygiene.

This webinar is pending approval by the American Board of Industrial Hygiene (ABIH) for .5 ABIH (IH) Certification Maintenance (CM) Point. This webinar qualifies for .15 BCSP (SP) Continuance of Certification (COC) Point for Certified Safety Professionals. Participants seeking CM or COC points must attend the live webinar or view the archive and submit a final exam and evaluation. Certificates of Completion will be issued in a timely manner after receipt and completion of these items.

For more detailed information about the TLVs® and Adjustments due to Worker Conditions webinar, contact Tammy Vanderbilt at or 513-742-2020.

To register for this exciting event, visit the ACGIH® website at

ACGIH® is a member-based organization that advances occupational and environmental health. ACGIH® is one of the industry's leading publications resources, with approximately 400 titles relative to occupational and environmental health and safety, including the renowned TLVs® and BEIs®. For more information, visit the ACGIH® website at or call our Customer Service Representatives at 513-742-2020.

Amy B. Bloomhuff, Esq., CAE
Associate Executive Director